Rocket.chat will be shut down

The service Rocket.Chat[1] will be discontinued[2] in about a week. Users should switch to GWDG Matrix as soon as possible and export[3] their Rocket.Chat data if desired.

[1] https://docs.gwdg.de/doku.php?id=en:services:email_collaboration:rocketchat:eol
[2] https://docs.chat.academiccloud.de/en/first-steps/index.html
[3] https://chat.gwdg.de/export